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Silver rectangular 2.5 inch SATA hard drive bare unit

Seagate

Seagate Momentus 5400.4 ST9200827AS 200GB 5400 RPM 8MB SATA 3.0Gb/s 2.5" laptop hard drive

SKU CH-P75S-E8B3R MPN ST9200827AS

A 2.5 inch SATA laptop hard drive with 200GB capacity, 5400 RPM speed and 8MB cache

  • Total capacity200 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory8 MB
  • Mean latency5.6 ms
  • 200 GB capacity stores large media libraries
  • 5400 RPM spindle delivers quiet operation
  • 8 MB cache accelerates frequent file access
  • SATA 3.0 Gb/s interface enables simple laptop upgrades
  • 5 inch form factor fits standard drive bays

Seagate Momentus 5400.4 200GB SATA drive

This Seagate Momentus 5400.4 model ST9200827AS is a 200GB 2.5 inch laptop internal hard drive. It spins at 5400 RPM with an 8MB cache and connects via a SATA 3.0Gb/s interface. The bare drive arrives in OEM packaging and carries a three-year limited warranty.

Ideal for older laptop repairs and basic storage

The drive suits technicians restoring legacy notebooks that require a 2.5 inch SATA mechanism with modest capacity. It is not suited for users who need more storage space or higher throughput for modern operating systems and applications.

SATA 3.0Gb/s interface determines compatibility

The SATA 3.0Gb/s interface is the single specification that decides whether this drive fits the target system. Verify that the laptop or enclosure accepts a 2.5 inch SATA drive before purchase.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $41.99
Cheaper than about 78% of the 645 comparable items (median $66.99).
Total capacity 200 GB
Lower than about 67% of the 419 comparable items (median 320 GB).
Price per TB $209.95 per TB
Cheaper than about 54% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Product lineMomentus 5400.4
Model nameST9200827AS
Total capacity200 GB
Performance
Mean latency5.6 ms
Rotational speed5,400 RPM
Storage
Cache memory8 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Shipping weight0.09 kg
Package size133 × 83 × 8 mm

Questions about this item

Will the 5400 RPM spindle speed keep my laptop responsive for everyday tasks?

At 5400 RPM the average latency is 5.6 ms, which is typical for a 2.5 inch drive and keeps boot times and file loads steady for office work and web browsing.

What does the SATA 3.0 Gb/s interface actually limit on this drive?

The SATA 3.0 Gb/s link caps the burst transfer at 300 MB/s, while sustained reads and writes stay well below that because the 5400 RPM platters and 8 MB cache set the real throughput.

Does the 2.5 inch form factor fit every laptop drive bay?

The drive uses the standard 2.5 inch height for SATA notebook bays, so it slides into any laptop or enclosure designed for a 2.5 inch SATA hard drive.

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